"However, I say to YOU: Continue to love[Greek: AGAPATE]your enemies and pray for those persecuting YOU."-Matthew 5.44 New World Translation.(italics and square brackets ours)

The New Linguistic and Exegetical Key to the Greek New Testament by Cleon L. Rogers Jr and Cleon L. Rogers III says under the Greek word AGAPATE(Kingdom Interlinear Translation "be loving"):

"pres[ent] imp[erative]act[ive] AGAPAW...Pres[ent] imp[erative] used to express a continual attitude. ..."-p.12.italics ours.

Charles B. Williams in his The New Testament in the Langauge of the People translates at this place:

But I tell you, practice loving your enemies and praying for your persecutors."-italics ours.